Potential Geological Significations of Crisium Basin Revealed by Ce-2 Celms Data

Abstract

ABSTRACT:Mare Crisium is one of the most prominent multi-ring basins on the nearside of the Moon. In this study, the regolith thermophysical features of Mare Crisium are studied with the CELMS data from CE-2 satellite. Several important results are as follows. Firstly, the current geological interpretation only by optical data is not enough, and a new geological perspective is provided. Secondly, the analysis of the low TB anomaly combined with the (FeO+TiO2) abundance and Rock abundance suggests a special unknown material in shallow layer of the Moon surface. At last, a new basaltic volcanism is presented for Crisium Basin. The study hints the potential significance of the CELMS data in understanding the geological units over the Moon surface.

Reevaluating Mare Moscoviense And Its Vicinity Using Chang’e-2 Microwave Sounder Data

“…However, if the other parameters are omitted, only the higher substrate can be responsible for the higher T B at night. A similar conclusion can also be obtained in Mare Orientale and Crisium using the CELMS data [20,44]. That is, the substrate temperature of the lunar regolith in Moscoviense Basin is likely much higher than what we know.…”

Several Geological Issues of Schrödinger Basin Exposed by CE-2 CELMS Data

“…According to the range of Schrödinger basin, more than 600 tracks of swath CELMS data were acquired. For the brightness temperature (T B ) is heavily influenced by the surface temperature, or surface illumination [12,16], the hour angle is introduced to describe the measured T B in different time spans [11,13,15,19,20]. Additionally, the quantity of the selected CELMS data is more than five times as that with a similar area in low latitude regions [18].…”

“…But the T B in the central basin floor is only about 10 K higher than its vicinity. That is, the T B variation with the latitude is much larger than that resulted from the thermophysical parameters of the lunar regolith [13]. Therefore, this latitude-dependent impact must be eliminated before using the generated T B maps.…”

“…Firstly, one T B is selected for every latitude on the condition that the (FeO+TiO 2 ) abundance, surface slope, and rock abundance are similar in all selected positions. Here, the selection criteria are same as Meng et al [13]. The composition, surface slope, and rock abundance data are referred through JMARS software.…”

“…The CELMS data are of special significance in the current lunar geological study, which has been proved by Meng et al [11] and Hu et al [12] through evaluating the mare volcanism in Mare Imbrium. Meng et al [13] also gave a distinctly different view about Mare Crisium using the CE-2 CELMS data compared to the optical data and indicated a new understanding about the mare volcanism there. This hints to the potential applications of the CELMS data to better understand the thermal evolution of the Moon.…”